The Age of Reptiles Author:Edwin H. Colbert Concise detailed review—amply illustrated—of the astonishing creatures that ruled the earth for some 60 million years, with particular emphasis on the tetrapods (four-legged vertebrates that lived during the years of reptilian dominance). Also examines interrelationships between amphibians and reptiles, birds and mammals, and between... more » these creatures and their environments. Addition of new addendum by author updates text to present. 1965 ed.« less